Machine for trimming heel covers



Dec. 15, 1931. w. H. NUTT ET AL.

MAGHIE FOR TRIMMING HEEL COVERS Filed Dec. 5l, 1929 3 Sheets-Sheet l www.

mvg/WMS.

Dec. 15, 1931. w. H. NUTT ET AL MACHINE FOR yTRIMMING HEEL COVERS Filed Dec. 31, 1929 3 Sheets-Sheet 2 Dec. l5, 1931. w. H. NUTT ET AL MACHINE FOR TRIMMING HEEL COVERS Filed Dec. 5l, 1929 5 SheetS-Sheet 3 VEN TS. MM 74%.

Patented Dee.-15`,`19:s1

f UNi'rli-Dsflussaises MASSACHUSETTS, ASSIGNORs 'ro .UNITED SHOE MACHINERY CORPORATION, :ori

v4P ENT y j WILLIAM ii.`NUT'i1, or NEWBnRYroi-LT, AND NeRwoon 1i. KNOWLTON, or RooKroRT,

lPATERISOIW,N'ET JERSEYQVA GORPORTIN OF NEW JERSEY MACHINE FOR TRIMMING vHEEL COVERSV Appiieetien flied` December 31, 1929. serial Ne. 417,764;

IThis invention relates to trimming"machines and is herein illustrated' asembodie'd "in a machine designed for trimming heel covers attached to the heels, 'preparatory to tucking the marginal portions 'of th'e covers into grooves in Lthehe'els.V g y v When heels are covered in ja A'manner de# scribed in United StatesLetters Patent No.'

1,704,204 (issued Meren 5, 1929011 en application iled in the nameot WilliamH.' Nutt,

relatively narro'vv grooves are formed inthe breast ofthe heel adjacent tothe breast. edges .e

` of the heel thereby forming al rib extending along each marginal vportion yof the heel breast. The cover tor the rear portion and the sides of theheel is then-so applied to the heel that it extends beyond 'thebreast edges,

the portions oic the cover extending beyond ,p the breast edges are `next trimmed so that '20 which are tucked into and secured vvithinft-he grooves beside the tucked-in margins 'ofthe side cover. In coveringthe improved heels, it will be clear that theside cover must be trimmed accurately in vorder thatits margi- 'n'alportio'ns can be fitted properly into the grooves. is difficult to trim the forward marginal portionsof` the rear and side covers of heels by 'hand and'- such a process is slow `and requires a high degree of skill on the part of the operator. Moreover, when the heel "covers aretrimmed they are usually in teinper and Vif trimmed exactly to thesameesize as therportion of the heel with Which they are to engage they will sometimes be too short t'o fit accurately into the groovesQ It is therefore 4preferable to allow `for shrinkage by trimming the covers slightly oversiz'e'and this erationby ,handf i y i y Kn -bjec't of thefpresent inventionisjto provide -an"improved machine which vvill lbe adds tothe ditliculty ,of carrying Voutthe op!` -Covers attached to heels.

eitective Vand reliable y :tor trimming side covers of heels for reception in grooves such, for example, as disclosed in the above-referred`to Nutt patent.

In accordance With a feature VVof thepres- "l ent invention the/illustrated machine'comprises 'a cutter" and a shea-r me1nber con" struct-ed andarranged to trim ,a cover at-V tached-` to a heel to prepare a marginal'por.- tion vof the cover tor insertion in {aggroove in 'the breast of the heel as the heel is moved past the cutter, a gage for engaging lthelheel Y Within the groove and a 'rest Vfor engaging a side of thevh-eel, the gage and the rest `being 1,

relatively to the cutter for performing the trimming. operation, thereby` .providing an organization 'for expeditiously trimming heel constructed and arranged to .position the heel `r@f6A The cutter and the shear mmber -Of the .A

illustrated machine, in accordance With another feature ofthe invention, are of the ro- Atary typeand overlap each other to form a shear couple tor trimming the heel cover. The shear member of the illustrated machine may beV positively rotated or itmay 4be driven by trictional Contact With the rotary cutter depending upon the shear couple operation desired toi' most effectively-severing the material'being trimmed. In order to trim covers for reception in grooves located atditl'erent distances tromthe breast fedgesoffthe -heel and in accordanceivith another rfeature of the invention the gage and the'jrest 'are mounted torA adjustment relatively, to the `cutter and relativelyto 'Veaclrothen heel-engaging portion ot the gage, in accordance `With a further teatureof the invention, is illustrated as a. Wheel, surfaces o'f which are constructed andarranged to engageinside and outside breast edges ofthe groove inthe breastot the heel, 'the surface which` engages the inside breast edge ot 'the groove being inclined at a slight angle to 'the plane of rotation ot theY Wheel to prevent ing the cover trimming operation. In accordance with a further 4Jfeature of tary shear member of the illustrated machine The "es `the Wheel from riding out of the groove dur- Y the invention, the rotary cutter and fthe roi,

are urged together and the shafts upon which these members rotate are slightly inclined to each other in order effectively to trim the cover material.

The machine illustrated as embodying the invention will now be. described with reference to the drawings in which,

Fig. l is a front elevational view of the illustrated machine which comprises right and left trimming units for trimming the right and left marginal portions of side covers attached to heels preparatory to tucking the marginal portions of the covers into heel cover-receiving grooves in the breasts of the heels; Y Fig. 2 is a perspective view of the righthand trimming unit of the machine illustrated in Fig. l as seen when looking in the direction indicated by the arrows lI-ll of Fig. l;

Y Fig. 3 is an elevational view of the left end of the right-hand trimming unit illustratedV in Fig. 1;

Fig. 4 is a detail view illustrating portions of the mechanism for adjusting the heel-positioning gage of the unit illustrated in Figs. 2 and 3 relatively to the rotary cutter shown in that unit;

Fig. 5 is a sectional view of the illustrated machine taken along the line V-V of Fig. 3 clearly to show the mounting of a rotary shear member which cooperates with the ro- .tary cutter to form a shear couple` for trimming heel covers;

Fig. 6 is a perspective view showing the relative positions of the heel, the cover of which is being trimmed, and the heel positioning and trimminoF instrumentalities illustrated in Figs. 2 and 3 of the drawings;

Fig. 7 is another view of the heel and the heel-positioning and trimming instrumentalities illustrated in Fig. 6 as seen when looking in the direction indicated by the arrows Vll--Vll of Fig. 6, the heel and a portion of the machine being shown in section; and Y Fig. 8 is a detail view illustrating the construction of the heel-engaging portion of the gage in guiding contact with the sides of a groove in the breast of the heel.

The illustrated machine comprises a cutter 20 and a shear member 22 in overlapping relation and constructed and arranged to trim a cover 24 attached to a heel to prepare the marginal portions 26, 27 of the cover 24 for insertion in grooves 28 in the breast of the heel as the heel is moved past the cutter, a gage 30 constructed and arranged to engage the heel within the groove 28 and a rest 8 for engaging a side of the heel, the gage 30 and the rest 32 being adapted to position the heel and the heel cover relatively to the cutter for performing the trimming operation.

In order that the operator may trim the cover 24 along each of the marginal portions 26 and 27 thereof starting at the tread end portion 34 (Fig. 6) of the cover and finishing at the attaching face end 36 of the cover as he moves the heel rearwardly of the machine, the illustrated construction (Fig. l) com-I prises right and left units A and B, respectively. lt will be necessary, however, to describe but one of the units since the parts in each of these units are identical, the only difference in construction of the units A and B being in the reversal of some of the parts thereof for trimming the marginal portions 26, 27, respectively, of the cover. ln order to support the units A, B at a height convenient for presenting the work to the heel-positioning and trimming instrumentalities, the illustrated machine is` provided with a pair of laterally extending plates 38 (Fig. l) supported upon and bolted to a block 40 which may be adjustably mounted in a vertical direction upon a standard 42. The heel-positioning and trimming instrumentalites of each of the units are supported in a housing 44 having a flanged base plate 46 which is bolted to the plate 38.

The housing 44 comprises a pair of upstanding ears 48 each of which is bifurcated to receive bearings 50, 52 for the shafts 54, 56 respectively, upon the ends of which shafts 54, 56 are mounted the rotary cutter 2O and the shear member 22, respectively which form a cover shear couple. rifhe cutter-shaft 54 is operated by a pulley 58 rotatably mounted upon the outer end of the shaft 54 and connected through a belt 60 to a driving pulley 62 (Fig. l) which is also the source of power for operating the shear member 22 as will soon appear in the following description of the machine. Vhen operating upon certain grades of leather and yCelluloid it may be desirable positively to rotate the shear member 22 rather than to have its rotation dependent upon frictional contact with the cutter 20. The machine is thus constructed and arranged so that the shaft 56 may be alternatively driven through frictional contact with the cutter 2O or may be positively driven through the cutter-shaft 54. Mounted upon the cutter-shaft 54 is a skew gear 64 constructed and arranged to mesh with a skew gear 66 keyed to the top portion 68 of a vertically disposed shaft 70, the lower end of which is journaled in a bearing 72 of a removable block 74 and the top portion 68 of which is held in vertical position through a Vremovable pin 76 which lits into a bore 78 of a depending portion 8O of a cover 82 and engages within a recess 84 in the end of the shaft 70. The lower portion of the shaft between the gear 66 and the block 74 has a worm `86 thereon which meshes with askew gear 88 carried by the shaft 56. It will be clear that when the pin 76 has been removed fromthe recess 84 of the shaft 70 -that after loosening aI set-screw 89, the block 74 to- V'104 at the end of the shaft V56.

rgether with the shaft and the gear66 may ffberelnoved from the machine, thus throwing the shaft 54 out ofpositive rotation with the V shaft 56.

, i Thei cutter-shaftj54 against` longitudinal movement in its bearings and the shaft `56 `which carries the` shear member 22 maybe moved slightlylengthwise thereof in order that its facef g(Fig. 7) mayV be constantlyA urged toward lthe tace 92 of the cutter 20. The contactotthe cutter 2O andthe shear memberI 22 .is assured by employing a bell cranlrlever 94 (Figs. 1 and 5.) `pivoted in a` bracket 96 screwed( tothe housing 44 and having avertically disposed arm 98 provided f with afrecessed v.portion 99` (Fig. 5)..which engages 4aball.bearing102seated in a recess j l u A spring 106 seatedinla bore108 and acting againstthe lowerarm 110 of the bell crank lever 94 constantly `urges the arm 98j` against theshaft .56 thus forcing the face 90 of the shear mem- 'ber-22A toward the face 92 `of the cutter 20.

Inorderto assure that the cutting portions ottlieshearfcouple at the pointlot entry V112 (Fig. 2) of thecouplewill engageV eachother undersubstantial pressure and thusoperate more effectively, theshaft 56v is mounted for "slight s angular adjustment relatively Vto the cutter-shaft 54in ahoriZontalplane (Fig.

'54); Vhen such an `)adjustment has been made `it is clear thatjthe planes of rotation ofthe rotary cutter 2O and the shearmember 22 will be inclined `to each other. The `mechanism for carrying out thisadjustment will now bebrieiiy described. j' 4The shaft 56' is mounted inthe above-mentioned bearings V52 y 122 having slots'124 for receiving the` screws' 126 and through which the plate is clamped to and removed trom the housing 44.

' j In order.ac'curatelyto` present a heel hav` ing a cover 24 attached thereto tothe cutter 2O and the shear member 22 for the purpose already explained, the gage SOyand the rest 32V are constructed and arranged .for adjustmentrelatively to the trimming instrumentalities` Thegage 30 is l.carried by arod-128 which is slidable ,in an "arm 130 and hasra slot 132 (Fig. 2) in its upper surface for` receiving a iared portion-134 of a screw 136 carried by the arm130. InA order to raise or lower'the rod` v128, the -arm 130 has a, setscrew 138,` irl-threaded engagement therewith,

relatively to the shear couple the endof whichset-screwnormally abuts against a beveledportion 140. ofthe rod128 v and may be turndtorelease therod 128 for movement relativer to the arm -130. vAfter the rod 128 has been released the screw 136 isturned until a proper adjustment is effectedafter which the set-screwj138 iszturned so that it engages the beveled portion V140 of the arm. For` adjusting the rod 12.8 and the arm`130 as a unit in the direction indicated by arrows142 (Figs. 2, 4) relatively tothe cutter V20, the .armV 130 is provided .with al slot 144 (Fig. 4)iwhich straddlesvv a stud 146 screwed into a Ylug 148.` After releasingV a flange` 15G-of the stud146 from engagement I4 with thertacell of the arm 130 and after relatively adjusting the arm 130V and the lug 148 byturning a screw 154,1the arm 130is again-clamped between the iiangeV 150 and the lug 148 to set the arm 136f and the lug. 146

in. adjusted relative positions. The foregoing relatively adjustedmembers` are mounted for ,adjustmentv in thegeneral plane of the cutter in `a direction indicated by arrows156 (Fig. V2) upon a `ribbed upper surface 158 Voiga block 160 which islbolted to the top of j the housing44. `The under surface ,162 of the baseportion164 of the lug 148has a shape complemental tolribbed upper surface 158 of the block 160 and may be clamped thereto by i a threaded studv 166 `which l.passes through a- .slot 168in'the baseof thelug and has a angejlj() whichengages-the top surface-of thel base portion 164 for clamping it to the block 160. j Y j The` rest `32, whichengagesthe heel adjacent to one otthe` breastedges 172 of theA heel` `(Fig; 7) vand.cooperatesjwith the gage l 36in positioningthe cover 24 attached to the heel relatively to the shear couple, comprises an elongated curved surface 174 for protecting the operator from the shear couple. In order to adjust the rest 32 (Figs. v2V and 3) in directions 4indicated by the arrows 176, 178 and-180,'the

machine is provided with three tonguesr and complemental channel couplings 182, 184 andV 186,:respectively, whichmay be loosened and Y.

tightened for purposes of adjustment by the screws 188,` and 192, respectively, as will be ,clear .upon inspection'ot Fig. 2 ofthe drawings. Y l Y i i Y A Provision is also made for4 sharpening-the .cutter-2Ov without removal 'vot the same from` the machine. .As Ybest illustrated inFigsy2 and 3 ot the drawings, a grinding wheel 194 mounted. upon a plunger` v196 extends through a cylindrical' member 198 .having `a projecting portion 200 journaled in.` a bearing 202 atone end ofabraclret 204. rlhe'other end ofthe bracket 2,04 is mounted for swing-- ing movement about a rod 206 supported from the housing 44. The bracket 204fis normally held in the position illustrated in` Fig. 'oramvay` from the cutter by a coil spring 208Mrnounted va steeper angle upon the rod 206 and having its ends 210, 212 secured to the housing'44 and in a tailpiece 214 of the bracket 204, respectively. It is clear from the above description that the grinding wheel 194 mayV be conveniently moved from its inoperative position shown in Fig. 3 into its operative position shown in F ig. 2 for sharpening the cutter and that the grinder will normally assume its inoperative position.

During the trimming operation, it has been found that there is sometimes a tendencyfor the portion 216 (Fig. 6) of the cover 24 which has been trimmed to become wound around one of the rotating shafts 54 or 56 with the result that portions of the side cover are torn from the heel. In order to avoid this difficulty, the machine is provided with stationary sleeves 218, 220 for covering the cutter-shaft 54 and the shaft 56, respectively. The sleeve 218 has a flared portion 222 secured to the bearing 50 (Fig. 2) and the sleeve 220 is sweated into a block 224 which has two )ins 226 extending therethrou `h for enfrao- 4 g D D ing a slot 228 in the bearing 52 for supporting the sleeve 220. In order to adjust the sleeve 54 lengthwise of the shaft 56 each of the vpins 226 is mounted for sliding movement iu the block 224 and may be locked to the block by' a'set-screw 230.

It will be noted (Fig. 8) that the portion of the gage 30 which engages the heel is illustrated as a wheel 232 mounted for rotation upon the rod 128. The wheel is constructed and arranged to enter the groove and has two faces 234, 236 for engaging the inside and outside breast edges 238, 240 of the groove 28. The face 234 is inclined at to the axis of rotation than is the face 236 of the wheel, the reason for the steep inclination of the face 234 to the axis of rotation being to prevent the wheel 282 from riding out of the groove 28 at the upper convex portion 242 of the breast of the heel by contact with a portion of the breast located at a point removed from the breast edge 238 of the groove.

The operation of the machine is as follows. The machine is first adjusted in order to set the gage 30 and the rest 32 at their proper positions relatively to the shear couple and the machine is arranged either positively to drive the shear member 22 or to drive said member through frictional drag of the cutter 20. The operator then manually moves the heel away from him (Fig. 6) with the gage 30 engaging within the groove 28, the side of the heel adjacent to the breast edge thereof (Fig. 7) engaging the rest 82, the trimming cut progressing from the tread end 34 of the heel to the attaching end' 36 thereof. The right and left marginal portions of the cover are trimmed in units A and B, respectively, it being immaterial which portion is first trimmed.

Having thus ldescribed the invention, what we claim as new and desire to secure by Letters Patent of the United States is:

1. A trimming machine having, in combination, a shear couple, a gage constructed and arranged to engage a heel within a groove in the breast of the heel, and a rest for engaging a side of the heel, said gage and rest being constructed and arranged to position the heel relatively to the shear couple for trimming a marginal portion of a cover attached to the heel for insertion in said groove as the heel is moved past the shear couple.

2. A trimming machine having, in combination, a shear couple, a gage constructed and arranged to engage the breast edges of a groove in the breast of a heel, and a rest for engaging a side of the heel, said gage and rest being constructed and arranged to position the heel relatively to the shear couple for trimming a marginal portion of a cover attached to the heel for insertion in said groove as the heel is moved past the shear couple.

8. ln a trimming machine, a rotary cutter, a shear member arranged to support a cover attached to a heel and to cooperate with the cutter for feeding the cover between the cutter and the shear .member and for trimming the cover to prepare a marginal portion thereof for insertion in a groove in the breast of a heel as the heel is moved past the cutter, and a gage constructed and arranged to engage within. the groove for facilitating the positioning of the heel relatively to the cutter and the shear member.

4. In a trimming machine, a rotary cutter, a rotary shear member arranged to support a cover attached to a heel and to cooperate with the cutter for feeding the cover between the cutter and the shear member and for trimming the cover to prepare a marginal portion thereof for insertion in a groove in the breast of a heel as the heel is moved past the cutter, and a gage constructed and arranged to engage within the groove for facilitating the positioning of the heel relatively to the cutter and the shear member.

5. In a trimming machine, a rotary disk cutter, a rotary shear member arranged to support a cover attached to a heel and to cooperate with the cutter for feeding the cover between the cutter and the shear member, a gage constructed and arranged to engage the heel within a groove in the breast of the heel, and a rest for the heel, said gage and rest being positioned in predetermined relation to each other for positioning the heel relatively to the cutter and the shear member for trimming a marginal portion of a cover attached to the heel for insertion in said groove as the heel is moved past the cutter.

v6. In a trimming machine, a rotary disk cutter, a shear member mountedfor movement under the frictional pull of the cutter en a infraside of 'ico in a groove in theV breast of the heel, and a V rest for engaging a side of the 1neel, said gage and rest being positioned in predetermined heel relatively tothecutter and the yshear member for trimming a marginal portion of a coverattached to the heel-for insertion in said groove as` `thefheel ismovedppast the cutter. i

i 7. In a trimming machine,arotaryfcutter,

a` rotary shear member having a portion over- Y lapping the cutter for rotating the'member by the frictionall drag of the cutter, said member', being. constructed and arranged to supporta cover attached to a heelV and to cooperate with the cutter for feeding the coverV between the cutter and the shear member, a

gage constructedfandarranged to engage the,

heel within agroove in thebreast of the heel, and a rest for engaging a sideV of the heel, said gage and rest being positioned in predetermined relation to each other toposition the heel relatively to the cutter and` theV shear member. for trimming -a marginal portion of the cover for insertion in'said groove as the heel is moved past the cutter.

8. In a trimming machine, a rotary cutter, a rotary shear member constructedand arrangedjor frotation `by the4 frictional drag ofthe cutter, means forlsetting the machine positively to rotate the shear member, said shear member being constructed and arranged te support a cover attached to a heel.

and to cooperate. with the cutter for feeding the ,cover betweeny the cutter4 and the shear member andfor trimming the cover to prepare a marginal portion thereof for insertion ina ,groove in theV breast ofthe heel as the heel""is moved pastvthe cutter, a gage constructed andA arranged to engage the heel within the lgro0ve,fand a rest for'engaging a side ofthe heel,said gage and rest being positioned rin predetermined relation to each other for positioning the heelrelatively tov the cutter and the shear member during the heel v.trimming operation. t1

bination, a. shear'. couple, a gage constructed and arrangedto-engage'aheel within a groove in the breast'of the heel, and a rest for enga'gingi asideof the heel, said gageand rest V being constructed Aandarranged to position the ,heelV relatively Eto Lthe shear couple for trimming a marginal portion ofa cover attachedl to the heel for insertioninY said groove 49.. A trimminglmachinefhaving, in com-.Yy

side kof the heel,` said gage and rest'being positioned ,in predetermined relation to each other to position the heel relatively tothe a marginal portion of a cover attachedito the heel for insertion in saidgroove as the. heel is moved past the cutter, the gage and the rest being mounted `for movement rela.-` tively to the cutter and shear memberto ail-'- nist the machine fer operating upondifferent sizes'and styles of heels. l

11. In a. trimming machine, a cutter, a

shear member constructed and arranged. to` trim a cover attached vtoa heel to prepare af marginal portion of the cover for insertionin` a groove in thebreast of the heelas the heel is moved past the cutter, a gage constructed and arranged toV engage a heel within a groove inthe breast of the heel, .andarest for engaging a side of the heel,1said gage and said. rest being mountedforfmovement relatively to the cutter and the shear member and also being mounted for movement relatively to each other in order accurately toadjustthe machine for operating y upon. heels of different sizes and styles. i

12.*In a trimming machine, a rotary cutter, a shear member mounted for rotation by the Vcutter andthe shear'member'for trimming l relation to each other for positionin'g'theV frietional drag of the cutter, said member'` being constructed and arranged to support a cover attached to a heel and for cooperating with the cutter for feeding the cover between the cutter and the shear member as well as to trim the cover for preparing a marginal portion thereof for insertion in al groove( in the breast of the heel as the heel Vislmoved -Y past the cutter, a gage constructed and arranged to engagethe heel within the groove to4 .position the heel relativelyto-the cutter and the shear member, and means forsetting the. machine positively member. Y

`13. A machine for trimming heel covers having, in combinatiom a rotary disk cutter and Vafrotary shear member constructed 'andi arranged to trim a cover attached to a heel Vto rotate the shear iis;

to prepare a marginal portion of the 'cover for insertion in a groove vin thebreastl of thev heel, a gage constructed and arranged for" postioning between the covering andthe `heel and rhaving a portion for engagingthe heel within the groove,` and arest for engagingaside of the helelll and for cooperatingwith-said gage in positioning l thecutter and the shear member.

14; A machine for trimming heel covers having, in combination, arotary disk cutter he cover relatively to` and a rotaryfsliear member constructed and' y arranged to trim a cover attached to a heel` to prepare'a margin of the cover for `inser-V tion in a groove in the breast of thel heel, a

gage constructed and arranged for positioning between the cover and the heel and having a portion for engaging within the groove, and a rest for engaging aside of the heel and for cooperating with said gage to position the cover relatively to the cutter, the gage and the rest being mounted for adjustment relatively to the cutter and relatively to each other to adjust the machine for operating upon heels of different sizes and styles.

15. In a trimming machine, a rotary disk cutter, a rotary shear member arranged to support a cover attached to a heel and to cooperate with the cutter for feeding the cover between the cutter and the shear member for trimming the cover to prepare a marginal portion thereof for insertion in a groove formed in the breast of the heel, a gage comprising a rotatably mounted member having a convex surface constructed and arranged to engage the heel and to be received within the groove, and a rest for engaging a side of the heel, said gage and rest being positioned in predetermined relation to each other for positioning the heel relatively to the cutter and the shear member during the heel trimming operation.

16. A machine for trimming covers having, in combination, means for trimming a cover attached to a heel to'prepare a marginal portion of the cover for insertion in a groove in the breast of the heel, and a gage comprising a rotatably mounted member surfaces of which are inclined at different angles to the plane of rotation constructed and arranged to engage opposite breast edges of the groove for positioning the cover relatively to the trimming means as the heel is moved past the trimming means.

17. A trimming machine having, in combination, means for trimming a cover attached to a heel to prepare a marginal portion of the cover for insertion in a groove in the breast of the heel, and a gage comprising a rotatably mounted member surfaces of which are constructed and arranged to engage inside and outside breast edges of the groove for positioning the cover relatively to the trimming means, the surface which engages the inside breast edge of the groove being inclined at a slight angle to the plane of rotation of the member to prevent the member from riding out of the groove as the heel is moved past the trimming means.

18. A machine for trimming covers having, in combination, a rotary disk cutter and a rotary shear member constructed and arranged to trim a cover attached to a heel to prepare a marginal portion of the cover for insertion in a groove in the breast of the heel, al gage comprising a rotatably mounted member the sides of which are inclined at different angles to the plane of rotation constructed and arranged to engage opposite breast edgesfof the groove, and a rest for engaging a side of the heel and for cooperating with said gage to the cutter.

19. A trimming machine having, in combination, a rotary shear couple mounted upon rotating shafts, means for positively rotating said shafts, means for guiding a heel past the rotary shear couple for trimming a cover attached to the heel, and means for preventing a portion of the cover being operated upon from winding around the shafts during rotation of the same.

20. A trimming machine having, in combination, a rotary couple mounted upon rotating shafts, means for guiding a heel past the rotary couple for trimming a. cover attached to the heel, and sleeves surrounding the portion of the shafts adjacent to the said couple constructed and arranged to prevent trimmed portions of the cover from winding around the shafts.

21. A machine for trimming heel covers having, in combination, a disk cutter and a shear member mounted upon rotating shafts and constructed and arranged to cooperate with each other for trimming a cover attached to a heel toprepare a marginal portion of the cover for insertion in a groove in the breast of the heel, stationary sleeves for covering portions of the rotating shafts adjacent to the cutter and the member, a gage constructed and arranged for positioning between the cover and the heel and having a portion for engaging within the groove, and a rest for engaging a side of the heel and for cooperating with said gage to position the cover relatively to the cutter.

22. A trimming machine having, in combination, a rotary disk cutter, a rotary disk shear member, means for guiding a heel past the cutter and the shear member for trimming` a cover attached to the heel, and means for urging the cutter and the shear member toward each other, said cutter and shear member having their respective planes of rotation inclined to each other to assure contact of the cutter and the shear member at the point of entry of the cover between the cutter and the shear member.

23. A trimming machine having, in combination, a rotary disk cutter, a rotary disk shear member, means for guiding a heel past the cutter and the shear member for trimming a cover attached to the heel, means for position the cover relatively to urging the cutter and the shear member toward each other, said cutter and shear member having their respective planes of rotation inclined to each other to assure contact of the cutter and the shear member at the point of entry of the cover between the cutter and the shear member, and means for varying the inclination of the plane of rotation of the cutter and the plane of rotation of the shear member.

Iri testimony whereof I, the said WILLIAM H. NU'i'i, have signed `my name to this specieation.

WILLIAM II; NUTT. f In testimony whereof I, the said NORWOOD H, KNOWLTON, have` signed my name to this specification.

NORWOOD H. KNOWLTON. Y 

